Ultra Red Megane 225
bit of a story to this one, any help / suggestions greatly appreciated.
My 53 registered 172 Cup decided it would spit a spark plug out of the head, and obviously strip the threads with it. Rather than do a quick repair in place, I decided that I would take the head off and do the job properly. So I went about removing the head and took it in to a cylinder head specialist.
While it was there, they changed all 4 plugs (helicoiling all 4 holes just to be sure) fitted new inlet valve oil seals, cleaned and decoked the head and re-lapped the valves.
I got the head back and re-fitted it, along with all new oem gaskets and cambelt kit.
It started first turn of the key, but cut out pretty much straight away and wouldn't tick over. After investigating a little bit further, I found that i had broken what I would call the manifold pressure sensor (see below) and found out that this can affect the engine idle speed.
I replaced it, and it runs better, but I'm still faced with the fact that the engine doesnt tickover smoothly like it used to, almost sounds like its misfiring. Once its over about 2000rpm it runs beautifully, and develops plenty of power - I still get that lovely kick at around 5k rpm
Does anyone know what else I should check? My gut feeling is an air leak somewhere, but I could be wrong.
Any suggestions?
James
My 53 registered 172 Cup decided it would spit a spark plug out of the head, and obviously strip the threads with it. Rather than do a quick repair in place, I decided that I would take the head off and do the job properly. So I went about removing the head and took it in to a cylinder head specialist.
While it was there, they changed all 4 plugs (helicoiling all 4 holes just to be sure) fitted new inlet valve oil seals, cleaned and decoked the head and re-lapped the valves.
I got the head back and re-fitted it, along with all new oem gaskets and cambelt kit.
It started first turn of the key, but cut out pretty much straight away and wouldn't tick over. After investigating a little bit further, I found that i had broken what I would call the manifold pressure sensor (see below) and found out that this can affect the engine idle speed.
I replaced it, and it runs better, but I'm still faced with the fact that the engine doesnt tickover smoothly like it used to, almost sounds like its misfiring. Once its over about 2000rpm it runs beautifully, and develops plenty of power - I still get that lovely kick at around 5k rpm
Does anyone know what else I should check? My gut feeling is an air leak somewhere, but I could be wrong.
Any suggestions?
James
